PSLE Gillian bought 2 fans of the same model at a sale. She paid $100.80 for them.
- What was the price of the fan before discount?
- Julian also bought 2 such fans at the price before discount. How much more did Julian pay than Gillian?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 45% |
- 75% |
|
After |
55% |
25% |
80% |
(a)
Amount that Gillian paid for the 2 fans in percent
= 55% + 25%
= 80%
80% → 100.80
1% → 100.80 ÷ 80 = 1.26
100% → 100 x 1.26 = $126
Price of the fan before discount = $126
(b)
Amount that Julian paid more than Gillian
= 45% + 75%
= 120%
= 120 x 1.26
= $151.20
Answer(s): (a) $126; (b) $151.20